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Microscale Fiber Network Alignment Affects Macroscale Failure Behavior in Simulated Collagen Tissue Analogs
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A tissue's microstructure determines its failure properties at larger length scales, however, the specific relationship between microstructure and macroscopic failure in native and engineered soft tissues (such as capsular ...
Crack Propagation Versus Fiber Alignment in Collagen Gels: Experiments and Multiscale Simulation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: It is well known that the organization of the fibers constituting a collagenous tissue can affect its failure behavior. Less clear is how that effect can be described computationally so as to predict the failure of a native ...
A Multiscale Approach to Modeling the Passive Mechanical Contribution of Cells in Tissues
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In addition to their obvious biological roles in tissue function, cells often play a significant mechanical role through a combination of passive and active behaviors. This study focused on the passive mechanical contribution ...
Combining Displacement Field and Grip Force Information to Determine Mechanical Properties of Planar Tissue With Complicated Geometry
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Performing planar biaxial testing and using nominal stress–strain curves for softtissue characterization is most suitable when (1) the test produces homogeneous strain fields, (2) fibers are aligned with the coordinate ...
Prefailure and Failure Mechanics of the Porcine Ascending Thoracic Aorta: Experiments and a Multiscale Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Ascending thoracic aortic aneurysms (ATAA) have a high propensity for dissection, which occurs when the hemodynamic load exceeds the mechanical strength of the aortic media. Despite our recognition of this essential fact, ...
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